Data Sheet

Warning: This product is not designed to or certified for any particular high-voltage safety
standard. Working with voltages above 30 V can be extremely dangerous and should only
be attempted by qualified individuals with appropriate equipment and protective gear.
Warning: Connecting or disconnecting a stepper motor while the Tic’s motor power supply
(VIN) is powered can destroy the motor driver. (More generally, rewiring anything while it is
powered is asking for trouble.)
Warning: This product can get hot enough to burn you long before the chips overheat. Take
care when handling this product and other components connected to it.
Before connecting anything to the Tic, we recommend running the Tic Control Center software to make
sure it can connect to the Tic over USB. This way you can ensure that the Tic is functioning before you
spend time soldering connectors or connecting other electronics, and if something goes wrong, you
will have a better idea of what caused the problem.
Connecting a bipolar stepper motor with four or six leads
Bipolar stepper motors commonly have four or six leads. These two-phase stepper motors have one
coil per phase, with one lead connected to each end of each coil. Versions with six leads also provide
access to the centers of the two coils so that the motor can optionally be controlled by a unipolar driver.
When controlling a six-lead stepper motor with a bipolar driver like the Tic, only the ends of the coils
are used, and the two center tap leads should be left disconnected.
Tic Stepper Motor Controller User’s Guide © 2001–2018 Pololu Corporation
4. Setting up the controller Page 22 of 150